Why there is an error in import javax.servlet.*?

Question

I am using JavaSE6 and Eclipse, there is an error in the line

import javax.servlet.*

It seems there is no jar for this import.

How to fix it? Install anything, use Eclipse EE or add some dependency in Maven?

Solution 1

The servlet API is not a part of the JDK, you need to add an additional dependency to your pom.xml.

If this is for a webapp you can add this dependency with provided scope and the servlet container will make these classes available to your webapp at deployment time.

<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>servlet-api</artifactId>
  <version>2.5</version>
  <scope>provided</scope>
</dependency>

Solution 2

javax.servlet.* is part of the Servlet API (which is part of the Java EE framework). Web Application Server/Web Containers wishing to use Servlets must implement the Servlet API.

Tomcat has servlet-api.jar which can be found under TOMCAT_HOME/lib (in Tomcat 6 and higher). Find one that's relevant to you based on the Web Application Server you're running.

Solution 3

You need servlet-api.jar. Assuming you're using Eclipse, you'd add the jar to your build path by right-clicking the project → Properties → Java Build Path → Add External JARs...

If you're using Tomcat 5.5, the JAR is in $CATALINA_HOME/common/lib.

If you're using Tomcat 6+, the JAR is in $CATALINA_HOME/lib.

If you're using JBoss 5, the JAR is in$JBOSS_HOME/common/lib.

Solution 4

javax.servlet is only available with Java Enterprise Edition. Either use it, or acquire the necessary JAR files (I got them with Apache Tomcat).

Solution 5

Tomcat? You need the servlet-api.jar present inside tomcat/lib

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